One of the biggest problems that we have in getting off fossil fuels is the intermittency of renewables; there is no sun at night and the wind doesn’t always blow. You could buy a lot of Tesla Powerwall home batteries, but that gets pretty expensive if you want to use it for heating, cooling, or domestic hot water. That’s why the Sunamp Heat Battery is such an interesting product. CEO Andrew Bissell tells Treehugger that they have sold thousands of these in the United Kingdom, mostly as hot water heaters where they are replacing dangerous on-demand gas water heaters in housing projects, but also in homes for domestic hot water and for the radiators that almost all British homes have for heating.
Treehugger 18th March 2021 read more »